I think it is a #15.

I keep my knives separate from my sheaths and my sheaths are all in a closet that I cannot get to very easily right now. (My Bride is doing some re-arranging upstairs and I have been told that I am off limits to go there.)

Maybe in a day or two, she will get it under control and I can get to them.

If memory serves me correct, the model# is on the sheath.
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"Filet that fish? Hell naw! I'll scale him, gut him, fry him up in grease, take him by the head and tail, and play him like a French Harp!" - Uncle Paul sometime in the 60s.